Description

LM337 Variable Voltage Regulators 0210 Most purchases qualify for a ** Combined Shipping Discount ** Fast eMail Fast Shipping Guaranteed Good-on-Arrival (5) LM337 Variable Voltage Regulators Negative Output -1.2 to - 37 Volts @ 1.5 Amps FEATURES: Negative Supply Regulator Wide -1.2 to -37 Volt Output Range -1.5 + Amp Output Few External Parts Required Internal Short and Thermal Protection Eliminates Stocking Many Fixed Values Simple Experimenter's Power Supply TO-220 Various Manufacturers: ST, ON-Semi Datasheet for LM337: https://linearparts.com/documents/LM337-on.pdf Notes: Refer to the left schematic above, R 2 = 96 [ V OUT - 1.33 ] Simple formula can be used to calculate R 2 for your choice of output voltage. R 1 must be 120 Ohms. It will get you within a few percent or better. Use a trimmer if you need better precision or a panel pot if you want it to be externally adjustable. Notes: Refer to the right schematic above. The current limiter circuit will work equally well with either a positive power supply. Since it is essentially a 2-terminal assemby, you can use with either a positive or negative supply simply by observing polarity. Replace the fixed resistor with a variable resistor and you can make a variable current source. An adjustable voltage regulator and current limiter make a handy bench supply. 337-5 ************************************* ham radio etronic e-tronic hamtronic qba BootsParts USA boots PAYMENT and SHIPPING ** We offer a Combined Shipping Discount for most purchases (no books) if paid with ONE SINGLE PAYMENT with eBay's SHOPPING CART ** Condition of Goods Unless otherwise noted above: NOS (New Old Stock) or better, clean, unused 30 day Non-DOA, Good-on-Arrival Guarantee Untested, but NO JUNK or suspect parts PCB parts are thru-hole, NO SMD/SMT Small parts may be bulk packed Manufacturers and Date Codes may vary Attention International bidders only: Sorry, we ship to US ZIP Codes ONLY . We DO NOT ship Internationally . We ONLY ship to Registered US addresses . We DO NOT accept INTERNATIONAL payments . IMPORTANT: The parts we sell are categorized as new because they are unused, but many of our parts are those rare, hard-to-find, discontinued, manufacturing surplus and / or old stock commonly known in the parts business as 'NOS' (New Old Stock). Some of our stock pictures show date codes which may vary from the actual product shipped. Parts from a larger OEM package may be repacked for smaller lot size orders or for more practical handling and shipping. See our store for other listed quantities. We strive to give full and accurate descriptions to earn your 5-Star Feedback. Any known deficiencies are listed in the detailed description. Datasheets are provided when available. Some datasheets may be close but not a perfect match because of part revisions or because they may be from a different manufacturer. If you have any questions concerning our products please email us before purchasing. Your complete satisfaction is important to us before and after the sale. Thank you. 111521